Side by side

Oris Aquis Pro 4000mvsHamilton Khaki Navy BeLOWZERO Auto Titanium

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Aquis Pro 4000m
OrisAquis Pro 4000m
MSRP $6,900
Khaki Navy BeLOWZERO Auto Titanium
HamiltonKhaki Navy BeLOWZERO Auto Titanium
MSRP $2,175

At a glance

17 of 29 specs differ
Diameter
Aquis Pro 4000m49.5mm
Khaki Navy BeLOWZERO Auto Titanium46mm
Power Reserve
Aquis Pro 4000m120 hoursh
Khaki Navy BeLOWZERO Auto Titanium80h
Water Resistance
Aquis Pro 4000m4,000m
Khaki Navy BeLOWZERO Auto Titanium1,000m
MSRP
Aquis Pro 4000m$6,900
Khaki Navy BeLOWZERO Auto Titanium$2,175

Full specifications

Case

7 specs
Diameter
49.5mm
46mm
Thickness
15.7mm
Lug-to-Lug
46mm
Lug Width
26mm
24mm
Finish
Brushed and polished
Water Resistance
4000m
1000m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Black
Indices
Applied

Movement

5 specs
Caliber
CALIBRE 400
H-10
Beat Rate
4 vph
28,800 vph
Power Reserve
120 hoursh
80h
Jewels
21
25
Complications
Date
None

Pricing

1 specs
MSRP
$6,900
$2,175

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Oris Aquis Pro 4000m

The Oris Aquis Pro 4000m is widely acknowledged as a substantial dive tool, with reviewers and owners alike noting its impressive 49.5mm diameter and 23.4mm to 25mm thickness. Despite its size, the titanium case and comfortable rubber strap contribute to surprisingly good wearability for some, though others find its dimensions impractical for daily wear. The patented Rotation Safety System for the bezel is praised for its intelligence and functionality, while the in-house Calibre 400 movement offers a 120-hour power reserve and a 10-year warranty. One owner notes that the clasp's quick-adjust pushers can be unintentionally activated during watch removal. Overall, owners and reviewers regard the Oris Aquis Pro 4000m as a stunning, albeit chunky, tool watch whose impressive specifications are its primary draw.

Hamilton Khaki Navy BeLOWZERO Auto Titanium

The Hamilton Khaki Navy BeLOWZERO Auto Titanium is widely noted for its substantial 46mm titanium case, with some owners finding it large and heavy, particularly on the bracelet, though others find the titanium version manageable and appreciate its sporty casual wearability. Readability in low light is a concern, with the lume described as not good. The watch features 1000m water resistance and an 80-hour power reserve, with a stealthy black dial and a distinctive arrow-tipped seconds hand. On balance, owners and reviewers highlight its robust build and impressive water resistance as key strengths for a sporty casual watch.

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